Mathematics, 23.12.2021 20:50 davidsouth444

Suppose you adopt the strategy to bear children until the first girl is born. Suppose that the probability of a boy on each birth is 0.5, and that each birth is independent and yields a single birth (no twins). a. Find the mean/expected number of births on which the first girl is born.
b. Find the mean/expected number of boys born before the first girl is born.
c. Find the standard deviation of the number boys born before the first girl is born.
d. Find the probability that the number of boys born before the first girl is born is within one standard deviation of the mean.

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